package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.exception.SetmealEnableFailedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;

    @Autowired
    private DishMapper dishMapper;
    /**
     * 套餐分页查询
     *
     * @param setmealPageQueryDTO
     * @return
     */
    public  PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(), setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(page.getTotal(), page.getResult());
    }

    /**
     * 新增套餐
     *
     * @param setmealDTO
     */
    public void setmealDish(SetmealDTO setmealDTO) {
        Setmeal setmeal=new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        setmealMapper.insetr(setmeal);
        Long setmealId= setmeal.getId();
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0){
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setDishId(setmealId);
            });
            setmealDishMapper.insertSetmealDish(setmealDishes);
        }
    }

    /**.
     * 批量删除套餐
     * @param ids
     */
    public void deleteBatch(List<Long> ids) {
ids.forEach(id -> {
    Setmeal setmeal=setmealMapper.getById(id);
    if (setmeal.getStatus()== StatusConstant.ENABLE){
//       当前套餐处于启售中，不能删除
throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE );
    }
});
        for (Long dishId : ids) {
            setmealMapper.deleteById(dishId);
           setmealDishMapper.deleteBySetmealId1(dishId);
        }

        }

    /**
     * 根据id查询套餐
     * @param id
     * @return
     */
    public SetmealVO getByIdDish(Long id) {
        // 根据id查询套餐
        Setmeal setmeal=setmealMapper.getById(id);
        // 根据套餐id查询套餐菜品
       List<SetmealDish> setmealDishes=setmealDishMapper.getBySetmealid(id);
        // 封装数据
        SetmealVO setmealVO=new SetmealVO();
        BeanUtils.copyProperties(setmeal,setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    /**
     *  修改套餐
     * @param setmealDTO
     */
    public void updateDish(SetmealDTO setmealDTO) {
Setmeal setmeal=new Setmeal();
BeanUtils.copyProperties(setmealDTO,setmeal);
//修改套餐基本数据
        setmealMapper.update(setmeal);
        //删除原有菜品数据
        setmealDishMapper.deleteBySetmealId1(setmealDTO.getId());
        //重新添加菜品数据
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0){
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setDishId(setmealDTO.getId());
            });
            setmealDishMapper.insertSetmealDish(setmealDishes);
        }
    }

    /**
     * 启售停售套餐
     * @param status
     * @param id
     */
    public void startOrStop(Integer status, Long id) {
        if(status==StatusConstant.ENABLE){
            List<Dish> dishList=dishMapper.getBySetmealId(id);
            if (dishList!=null && dishList.size()>0){
                dishList.forEach(dish -> {
                    if(StatusConstant.DISABLE==dish.getStatus()){
                        throw new SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);
                    }
                });
            }

        }
        Setmeal setmeal = Setmeal.builder()
                .id(id)
                .status(status)
//                .updateTime(LocalDateTime.now())
//                .updateUser(BaseContext.getCurrentId())
                .build();
        setmealMapper.update(setmeal);
    }

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}
